package day03;
//if....else结构的演示
public class IfElseDemo {
    public static void main(String[] args) {
        //1)满500打8折, 不满500打9折:
        double price = 300.0;   //带数(600.0, 300.0)
        if (price >= 500) { //满
            price *= 0.8;
        } else {    //不满
            price *= 0.9;
        }
        System.out.println("最终结算金额为:" + price);

        //2)判断成绩合法还是不合法:
        double score = 555;     //带数(95, -5, 555)
        if (score >= 0 && score <= 100) {
            System.out.println(score + "是合法成绩");
        } else {
            System.out.println(score + "是不合法成绩");
        }
    }
}
